Electronics Forum | Fri Dec 16 07:42:05 EST 2005 | pavel_murtishev
Good evening, We noted one more very strange problem with flash memory chips. Device fails test due to flash chip malfunction. From the first sight open joint or cold joint can cause such problem. But all chip legs are soldered well. We just heat th
Electronics Forum | Sat Dec 17 01:15:20 EST 2005 | Ogie Alcasid
At the s#$t-hole Contract Manufacturer where I work (name with-held), the motherf&ckers told us to wash them useless pieces of sh&% once a week, and "don't use fabric softener" otherwise you ruin the integrity of the faraday cage. Then they got on th
Electronics Forum | Mon Dec 19 13:51:57 EST 2005 | Brick
I have an idea/invention to put this whole "ESD/floating potention/to-smock-or-not-to-smock" idea to rest! Complete nudity underneath the SKIN-TIGHT-FULL-BODY-SUIT, anti-static, ESD smock, and all smocks must be "tethered" to the building's power gr
Electronics Forum | Fri Dec 16 11:21:18 EST 2005 | patrickbruneel
Steve, Water-soluble fluxes are per definition very corrosive and need to be cleaned (read the data sheet) Encapsulation will prevent humidity reaching the water-soluble acids but will not prevent reducing the metals the flux is in contact with to m
Electronics Forum | Fri Dec 16 10:45:41 EST 2005 | campos
Hi,, My doubt is regarding to the Reflow Time, I mean, in a 5 or 7 zones oves, how long the board should stay inside the oven to complete the soldering cycle? 4 min, more, less...Should I keep low temp until peak for a long time or high temp in shor
Electronics Forum | Fri Dec 16 14:27:39 EST 2005 | JMVT
Hello, I am planning to buy second hand Mydata TP9 machine for very small series production. Can anyone tell me his experience with this machine (in particular placement of 0402 as claimed in the spec brochure) Also interested in comments about man
Electronics Forum | Fri Dec 16 18:37:10 EST 2005 | mdemos1
Hi. I am trying to understand Tg and how it relates to reflow. With the higher temperatures of lead free, we have been looking toward laminates with a Tg of 180 instead of the current 140. My question is a little more general. In either lead free
Electronics Forum | Sat Dec 17 07:19:37 EST 2005 | aj
All, I am currently finishing off my PO for solder bars,paste,solder wire and Flux for the changeover to leadfree. Surely the company is not expected to take the full hit on this cost alone? I know there is some funding available for this but as f
Electronics Forum | Wed Dec 21 04:00:38 EST 2005 | geb
I have a Universal GSM1. I'm trying to add a new 6*16 matrix feeder. Does anyone know what the pickup X & Y refers to in the Pickup Information section. I've looked at an 8*20 and it says x=-38.5 , y=-28.3, but its not clear where it expects zero to
Electronics Forum | Wed Dec 21 08:30:13 EST 2005 | jax
"aj" you should find your way to a training class. The measurement is from the zero point of the tray feeder( almost always the feeder slot pin giude that the center guide of the tray holder hits...located in the machine ). It is not the same as nest
